Andreas Baumann
University of Würzburg
64 Papers
831 Citations
Andreas Baumann is an academic researcher from University of Würzburg. The author has contributed to research in topics: Charge carrier & Perovskite (structure). The author has an hindex of 29, co-authored 62 publications. Previous affiliations of Andreas Baumann include German Aerospace Center.
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Papers
Oxygen doping of P3HT:PCBM blends: Influence on trap states, charge carrier mobility and solar cell performance
TL;DR: In this article, the influence of oxygen on the performance of P3HT:PCBM (poly(3hexylthiophene):[6,6]-phenyl C61 butyric acid methyl ester) solar cells by currentvoltage, thermally stimulated current (TSC) and charge extraction by linearly increasing voltage (CELIV) measurement techniques was investigated.
314
Removing Leakage and Surface Recombination in Planar Perovskite Solar Cells
Kristofer Tvingstedt,Lidón Gil-Escrig,Cristina Momblona,Philipp Rieder,David Kiermasch,Michele Sessolo,Andreas Baumann,Henk J. Bolink,Vladimir Dyakonov +8 more
TL;DR: In this article, a three-order reduction of the shunt loss mechanism in planar methylammonium lead iodide perovskite solar cells by replacing the commonly used hole transport layer poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) with a better hole-selective polyarylamine was demonstrated.
236
Understanding the Role of Cesium and Rubidium Additives in Perovskite Solar Cells: Trap States, Charge Transport, and Recombination
Yinghong Hu,Eline M. Hutter,Philipp Rieder,Irene Grill,Jonas Hanisch,Meltem F. Aygüler,Alexander G. Hufnagel,Matthias Handloser,Thomas Bein,Achim Hartschuh,Kristofer Tvingstedt,Vladimir Dyakonov,Andreas Baumann,Tom J. Savenije,Michiel L. Petrus,Pablo Docampo +15 more
TL;DR: In this article, the effect of the inorganic cation additives on the trap landscape and charge transport properties within perovskite solar cells was investigated using time-of-flight, time-resolved microwave conductivity, and thermally stimulated current measurements.
Removing Leakage and Surface Recombination in Planar Perovskite Solar Cells
Kristofer Tvingstedt,Lidón Gil-Escrig,Cristina Momblona,Philipp Rieder,David Kiermasch,Michele Sessolo,Andreas Baumann,Henk J. Bolink,Vladimir Dyakonov +8 more
TL;DR: In this article, the hole transport layer poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) was replaced with a better hole-selective polyarylamine.
145
Trap distribution and the impact of oxygen-induced traps on the charge transport in poly(3-hexylthiophene)
TL;DR: In this paper, the trap distribution in the conjugated polymer poly(3-hexylthiophene) was investigated by fractional thermally stimulated current measurements, and two defect states with activation energies of about 50 and 105 meV and Gaussian energy distributions were revealed.
136